Quite by chance, I have come across a well of unexpected angst in a corner of the web I thought was reserved for foodies or hungry people. This angst, often manifested as anger, is literally bubbling away in online recipes. Yes, simple solutions for dinner are the new heartland of irate commenters.

Guys, be honest. Do you have two to three servings of fish (including oily fish) a week? Accredited practicing dietitian Joel Feren suspects not. And he would know. As the principal dietitian at Hear...